What should always be checked before leaving any loading dock?

Answer: C — The position of the dock board or plate

Before departing from any loading dock, it is crucial to check the position of the dock board or plate. This is essential for ensuring safety when transitioning between the dock and the vehicle. The dock board or plate serves as a bridge, allowing for the safe movement of goods and personnel. If the dock board is not properly positioned or is misaligned, it could lead to accidents such as falls or injuries to workers as they load or unload the truck. Ensuring that the dock board is secure and correctly placed helps prevent cargo from being dropped or equipment from tipping over during the loading process. It also ensures that the transition between different levels is safe for everyone involved. Therefore, verifying the dock board's position is a key safety measure every driver should perform before leaving the dock area.